As some of you know, I grow rainforest plants, I have some from South America, Africa, and Southeast Asia. I am having problems, though. My bananna trees seem to be dying and so is my King Sago. My bananna tree keeps growing new leaves and they keep dying. They also are very small. They are less than 30 centimetres. I saw one at the freenhouse, which arrived in the same shipment as mine, is at least a metre tall. Meanwhile, my King Sago's leaves are dying. There were little leaves, which died and I cut them off, and bigger leaves that are browning. I do know it is winter here, and things get a little abov freezing. This is my King Sago's second winter, but my bamnana trees' first.
What Should I do?

The same thing happens to one or two of the plants I bring in for the winter every year. I've never looked into the problem as I've always had another of the plant. The whole thing seems so weird as I take care of the over-wintering plants at the same time and the other plant like it does fine. Thinking about it makes me think something in the soil is out of whack - possibly I'll ask the botanical gardens if I think of it the next time I go.

Yes, the smaller banana tree completely collapsed. I peeled the leaves down and found green. That grew into a few leaves. The bigger one just keeps getting bigger. My King Sago isn't doing any better, though.